File size: 1,673 Bytes
0161e74 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | import argparse
import json
import sys
from pathlib import Path
import pytest
sys.path.append(str(Path(__file__).resolve().parents[1] / "src"))
from stack.cli_utils import (
ConfigFileError,
apply_config,
filter_unused_arguments,
load_config_file,
)
def test_load_config_file_json(tmp_path):
config_path = tmp_path / "config.json"
config_path.write_text(json.dumps({"learning_rate": 1e-4, "batch_size": 64}))
data = load_config_file(config_path)
assert data["learning_rate"] == pytest.approx(1e-4)
assert data["batch_size"] == 64
def test_apply_config_updates_defaults():
parser = argparse.ArgumentParser()
parser.add_argument("--alpha", type=float, default=0.1)
parser.add_argument("--beta", type=int, default=5)
recognised, unused = apply_config(parser, {"alpha": 0.25, "gamma": "ignored"})
args = parser.parse_args([])
assert recognised == {"alpha": 0.25}
assert unused == ("gamma",)
assert args.alpha == pytest.approx(0.25)
assert args.beta == 5
def test_filter_unused_arguments_detects_missing_required():
parser = argparse.ArgumentParser()
parser.add_argument("--alpha", type=str)
args = parser.parse_args([])
with pytest.raises(SystemExit):
filter_unused_arguments(args, ("alpha",), parser)
def test_load_config_file_rejects_unknown_extension(tmp_path):
config_path = tmp_path / "config.txt"
config_path.write_text("alpha=1")
with pytest.raises(ConfigFileError):
load_config_file(config_path)
def test_load_config_file_missing(tmp_path):
with pytest.raises(ConfigFileError):
load_config_file(tmp_path / "missing.yaml")
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